Air freshener



FIG. 1 is a right side elevational view of an air freshener in accordance with my design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the hook eyelet is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an air freshener, as shown and described. 